rdeppen, A 13t clutch bell will give you more punch and may cause more of a problem... My 8 actually pushed on a dry track ..... I was running M2 crimefighters and switched to GRP Jolly soft still with the stock set-up and it was alot better ..... but that was just a quick fix and we are all running on different surfaces.....

...I know the feeling!... I do it all the time!......The thinner diff fluid will probably do the trick.... but even staying with what you have and changing it may also help, That first diff fluid change (I Think) makes a big difference.... you'll notice the fluid will look like a metallic paint from all the gears breaking in! ... but either way I'm sure you'll be in good shape

i put 5 in the center when i built the buggy. and this is what i found.
when the track was we i had traction everywhere. The car would rotate quickley and the rear end staied planted. had a Ton of acceleration and it went threw the rought stuff like butter. however when the track started to dry out the rear end started to swing arround.

im going to try going up on the rear diff fluid and see whae that does. i will let yall know what happens.

__________________
Rob Jensen
Thanks to the following companies for their support in 2017: Team Associated, Maclan, Fierce R/C Solutions

We drive on a dry slick track that has alot of elevation change and blown out sections. The stock setup was OK. However I changed to an old setup to get the car more locked in and consistant. I went with 3-5-3 setup and shortened the wheel base by 1/8th. WOW! The car absolutly flies now and is so easy to drive. The rear stays planted even when I use less tire than what was previously desirable.

With sandy dust on top, the rear is planted with this set up. I'm finding small adjustments can really be felt if you take the time to try them.

I'm running the inner hole on the rear upright. This helps it have good rotation.

Racing tonight. I'll let you guys know once I have had it on the clock.
TEX